Oil-well gearing



P. J. SHOUVLIN OIL WELL GEARING May 15, 1928.

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' 1,670,168 P. J. SHOUVLIN OIL WELL GEARING' Filed. Apfi1l9, 1927 2 sheets-sheet 2 INVENTOR A TTORJVE Y "the inherent characteristics of an internal PATRICK J. sHoUvLIn,

OIL-WELL Application filed April 19,

My invention relates to oil. well gearing. lt-is theobject of myinvention' to provide gearing'which will be adaptable for use with a constant speed, single direction internal combustion engine from which'it Will be'possible to secure the movement of one speed in one direction for drilling, and a dual speed movement in the other direction for tool Withdrawal and the like withoutchanging the direction or speed of the engine, or 10s;- ing its horsepower.

Heretofore, it has been necessary to slow down the internal combustion engine to such apoint that it has beenvery diflicult to secure its horsepower output because of its necessary slow speed in startingthe equipment out of the well, and it is also difficult to use the same equipment for drilling as for tool removal. 4 v

These difficulties arise in connectionwith combustion engine and it is my object to provide mechanism which will permit the *is 'provided'with the clutch faces 44 and 45.

engine tooperate at its full rate of horsepowerand mechanism which will be able to utilize such horsepower effectively. Inthe' accompanying drawings:

i Figure 1 isa section through the mechanism of myinvention; Y

' Figure 2 is a 'sidefelevation of a part'of the lever control mechanism; v lv Figure 3 is a front elevation thereof; Figure 4 is a sectionon the 'line 44 of Figurel. I I

Referring to the drawings in detail, 1 is a driven engine shaft, which carries keyed j-thereto-by a key 2 thefclutch spider 3,1 which A'ring provide d withcl-utchfaces'4 and 5 is bolted by the bolts 6" tea drum 7 loosely inountedthrough 'theagency of the web 8 f and the sleeve 7 upon'the roller bearings!) carried'on the shaft 1 between'the spider 3 and a gear 10 fastened by thejkey ll on the shaft 1. r This drum is provided with a cutaway portion between the shoulders 12 I forming a brake band face 13. This brake band face is engaged by the brake band 14. -Onthe --inner side of -the drum 7 to one Y side of the web 8 is fastened anannular, in-

ternally-toothed gear 15 which is adapted to mesh with the pinions 16 which are pivotally mounted on the pinionstud shafts 17 which I are mounted at intervals loosely in the ring 18; such ring being carried upon a relatively long sleeve 19 which in: turn is supported position; i

or SPRINGFIELD, OHIO.

GEARING.

1927. Serial No. 185,014.

uponthe roller bearings 20 and 21 on the 1 shaft 1. These bearings are spaced the collar 22 carried internally onthe sleeve 19. Theslecve19 carries a sprocket 23 which in turn drives a chain that operates the driven mechanism, such as the oil Well equip ment hereinafter described; It isobvious' b 'videdv instead ofa sprocket.

v This sleeve 19 carries on one end thereof that a faccfor' receivin iaibelt may be pro- I .through the agency cube bolts 24a beveled gear 25which is adapted to mesh with a plurality of beveled pinions 26loosely turning upon ashaft'27. This shaft .27 ,is supported atone end inthebrake drum 2.8 and at the other end in a sleeve 29 rotatably supported up'onthe shaft-1 by the" roller 'bearing 30."- The pinions 26 also mesh'with an annular beveled gear; 31 fixed by the bolts 32 to an annular member 33' mounted. on the sleeve. .34 which is'keyed by the key35 to the shaft Suitable'guards 36 and 37are provided to protect the gears and to protectthe op erator f'rom becoming caught in the-gears: Similar guards 38 andw39'are provided for protecting the, gearinglfi, 16'and 1O.

The drum -28 has mounted thereon a brake band 40,the operation'iof which'will be hereinafter described. n Tlre reciprocating; loosely mounted sleeve 41 provided withr a pair of annular shoul i de'rs 42 is adapted to be engaged by a yoke v 43, which shifts'it inwardly and outwardly .to control the/clutchmembers 44 and 45 through the agency of'the: links 46 and 47 :and'the arm 48 The bolts 49 Serve asguide V bolts'oand are sup'Portedby the web or The shaft 50 controls the forward speed mechanism. It is, mounted upon a transverse pivotal support 52.] It carries a segment 53 having a notch:54 for receiving the lockingfarm 55 pivotally mounted at-56 on the supporting base"57. The reverse lever 51 is mounted on the support 52 and is like- I wise locked by the locking lever 55engag'ing in connection with their segments 53 and 58 that when one is'inoved inoperative vposition iwith a notch in its segment 58. When the o levers 51 and 50 are in vertical positionthey are-both in neutral, but they are so arranged the other is locked in neutral or inoperative The principal advantage of a mechanism of this character is that it makes it possible to ing ata uniform speed in the same direction for both the drilling of Wells and for the wlthdrawal of articles from the well, such ,as the tools androds. I

The drilling of thewell isYcarried out at a certain predetermined speed, butitmay i the weight thereof should be cont-rolled, which is possibleby the brakingaction on :the brake band. I

It will be understood that the drilling reverse mechanism while the tool elevating operation "1S carried out bv the forward speed mechan sm."

My idea is a novel one in oil well practice of utilizing. this multiple speed mechanism in oil well drilling ht-ilizing one speed in drilling and two speeds for Withdrawal of thetools and other equipment. I I

Method of operation. .Assuming that the shaft 1" is turning clockwise, and the partsare in neutral posi- 7 picked up and revolves through the spider, 3

tion,zit will be found that both brake bands 1d and are loose'on'their drums/7. and 28' and the clutch consisting of the clutch plates 44 and and the clutchfaces 4c and Swill be declutched. 1 v v The lever ismoved from neutral posi- 'tion to one-half speed position, "In this position, the go-ahead forward movement brake band 14L and brakedrum 7 respec tively are engaged whiletheclutch' is loose. At the same time, the brake band 40 is loose on the brake drum 28. Thiscanses the brake dru1n7 to become stationary while the shaft 1 is turning the gear 10 so that the intermediate pinion 16'causes the sleeve 19 to turn at one-half speed.

If the lever 50 is moved to position, its full v speed position,then the brake drum 7 is released by its brakeband 14 and the clutch surfaces 4 and-5 are'engaged by the clutch plates 44 and 45 by the movement of the sleeve 4:1, with the result that the drum 7 is with the shaft 1. ,The ring gear 15 travels,

of course, with the drum and the gear 10 and lowering operations are carried out by the travels with the shaft 1. As the speed of all the parts is the same, the pinions 16 are not revolved but the shift1, spider 3,drum 7, ringgear l5, pinionlfi and gear 10 travel as a unit carrying with thein the plate 18 and.

sleevelQ, together with the sprocket 23 at the same speed that the shaftl turns, or full speed forward.

' In case it is desired to reverse the mech'anisin, the brake band l t-is loose, the clutch is loose, the lever 50 is brought to neutral and the member 51 which controls the brake band 40 is moved tolcause the brake band 40 to engage'the' brake drum 28 which is thereby held stationary. i

The shaft turns the plate member=33 to gether-with its beveled gear 31' rotating the .pin-ionsf26 whichin turn cause the beveled.

gear 25 to rotate in the reverse direction t0? the direction of movement of the shaft 1,

and as the beveled gear 25 is connected to the sleeve 19, the sprocket 23 attached th.ere-.

to is caused to turn in thej'everse direction.

It will be understood that I desire to comprehend within my invention such niodi-ticati'ons as may be necessary to adapt itgto varyingconditions and uses. I

Having thus fully described my invention,

what I claim as n'eweand desire to secure Letters Patent, is

In combination, a driving shaft,-:a' sleeve loosely mounted thereon bearings supporting said sleeve on saidshaft spaced by said sleeve, a ring on said sleeve, .a-pl urality 10f pin ons pivotally mounted on said ring at spaced intervals with their axis parallel to the axis of the shaft, a gear mounted on said shaft within said pinions, a .ring'gear meshing with said pinions on'the exterior thereof,

a clutch drum engaging said ring gear having a :drum face on the exterior thereof, a

clutch band for engagingsaid. drum," clutch surfaces mountcdon a ring on said drum,

mel nberswith said clutch surfaces, and beara spider fixed on said shaft, clutch members adapted to engage said surfaces carried by. 'Stld'SPlflQl, and means carried on saldshaft for engaging and disengaging saidcl utc'hlei.

ing meansfor supporting said drum on said shaft, said bearing means being located between vthe gearing-on said shaft andthe spider on said shaft, means to'interconnect said clutch and bandwhereby said clutch and band maybe operatedalternately, a'nda; e

common operating means therefor. In testimony whereof, I fiix my signature;

PATRICK le ma." 1 

